Huahengyuan Steel Structure’s Rectangular Hollow Sections are a versatile and durable solution for modern construction needs. With their efficient hollow design, these structural steel profiles offer excellent strength-to-weight ratio, making them ideal for load-bearing applications. Our Rectangular Hollow Sections are widely used in warehouses, steel frames, support columns, and modular structures, and are available in various grades such as Q235B, Q355B, and ASTM A500. We provide custom sizes, wall thicknesses, and surface finishes—including galvanized, painted, or powder-coated—to meet the specific requirements of your project.
Contact us to buy high-quality steel tubes！
Scope of production
|
Size |
Thickness |
Length |
Surface |
|
(mm) |
(mm) |
(m) |
Customized |
|
20×20-600X600 |
1.3-30 |
5.8 m/ 6 m/ 11.8 mm/ 12 m Customized |
Painted/ Galvanized/ Oiled |
Our Advantage
Uncompromised Quality from Raw Material to Finish
- Our Rectangular Hollow Sections use premium steel grades like S235JR, S355JR, and ASTM A500, delivering tensile strength up to 550 MPa and yield ≥235 MPa—ideal for heavy-duty structures.
- High-frequency welded with 98% joint strength, each tube undergoes UT and ECT testing to ensure no cracks or porosity.
- Cold-formed with ±0.5 mm tolerance and Ra ≤12.5 μm surface finish, ensuring precise fit for critical applications.
Tailored to Fit Every Project Need
1.We offer a wide range of Rectangular Hollow Sections and Square Tubes:
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Square: 20×20mm to 600×600mm | Wall: 1.5–30mm
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Rectangular: 20×10mm to 500×300mm | Wall: 2–30mm
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2.Custom shapes (e.g. trapezoidal, perforated) are available.Drawings approved in 3–5 days, production in 7–15 days, supported by our in-house R&D team.
3.Applications: curtain walls, robotic frames, shelving, solar systems, and modern architecture.
Trusted Compliance, Guaranteed Performance
1.Our Rectangular Hollow Sections meet ISO 9001:2015, EN 10219, GB/T 6728, ASTM A500, CE, and SASO standards for global markets.
2.Each batch comes with MTCs and third-party test reports:
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Salt Spray ≥1,000 hours (ISO 9227)
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Hardness HRB 70–80 (ASTM E18)
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No cracks in 3x wall thickness flattening test
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3.Covered by a 10-year warranty with 24/7 technical support and ≤48-hour response to quality issues.
From Raw Tubes to Ready-to-Install Solutions
| Service | Technical Specifications | Applications |
|---|---|---|
| Laser Cutting | ±0.2mm precision, up to 16mm thickness | Precision machinery, custom connectors |
| Hot-Dip Galvanizing | Zinc coating ≥85μm, 1,500+ hours salt spray resistance | Marine engineering, chemical plants |
| End Beveling | V/U-bevels (30°–45°), CNC-machined | Welded structures, pipeline systems |
| Powder Coating | 60–120μm thickness, RAL/Pantone color matching | Architectural façades, outdoor installations |
Proven Excellence Across Industries
1.Singapore Marina Bay Integrated Resort: Supplied 600 tons of galvanized rectangular tubes for curtain wall systems, reducing on-site assembly time by 20%.
2.BMW Leipzig Assembly Line (Germany): Custom 200×100mm tubes with ±0.3mm tolerance for robotic arm bases, ensuring seamless automation integration.
3.NEOM Smart City (Saudi Arabia): Delivered sand-resistant coated tubes certified to ISO 12944 C5-M, engineered for extreme desert environments.
